Jonathan Edwards
Senior Member (Voting Rights)
The reason that 'qualitative studies' are considered to be of 'no value' is because they are incredibly hard to analyse properly.
My understanding from supervising the physios thirty years ago is that 'qualitative studies' are by definition studies that do not attempt to generate any numbers that could be compared with controls. All my histological work was qualitative but I did not call it that because something was either there or not. All the suggestions the physios made for qualitative studies they wanted to do seemed to me to be incapable of providing any reliable data.